Archive for April, 2010

FOBSUN releases LED T5 tube series

26 Apr

FOBSUN LED T5 Tube Light is the next generation of lighting solution to replace the conventional fluorescent light. It features higher efficiency, more reliability and more eco-friendly compared with the previous generation. They are the ideal LED T5 replacement which can be directly placed onto existing T5 sockets and suitable for lighting use in homes, offices, museums, galleries, shop windows, hotels, restaurants, meeting rooms, just like conventional fluorescent lights.

Higher Reliability
1) Adopting high quality SMD LEDs ensures their low light decrease and their excellent property of heat dissipation.
2) With specially designed aluminum housings and unique thermal control technology, they really achieve full heat dissipation.

Easier Retrofit
LED T5 Tubes can directly replace traditional T5 tubes. One Tube with one fixture is sold as a kit. The power supply is built-in fixture, which makes the heat in tube much lower and makes sure the LEDs work in a better environment. The tubes can be connected one by one via connectors, and they are easy to install via two mounting clips.

Higher Efficacy
LED T5 Tube Lights utilize high quality SMD LEDs with high efficacy (typical 90 lm/w) as light source which does not only save your energy bills, but also save your maintenance costs due to its long lifespan. Choose it and enjoy your bright life.

More Eco-friendly
Compared to conventional fluorescent lights, they hardly emit any carbon dioxide as well as any UV and IR which does harm to the environment. Moreover, they do no harm to human body as result of containing no mercury and other hazardous materials.


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LED Aquarium Lights, Lighting

23 Apr

LED (light-emitting diode):

This aquarium light type uses semiconductor technology as its light source. The difficulty in the past (and where many still misunderstand the complexities of LEDs) is correct wave length of the emitters. For example the infrared emitter uses Gallium arsenide (GaAs) and/or Aluminium gallium arsenide (AlGaAs) for its semiconductor material while Blue (460 nm) uses Zinc selenide (ZnSe), Indium gallium nitride (InGaN), Silicon carbide (SiC), and/or Silicon (Si)
Achieving the correct wavelengths in the correct amounts has been the challenge and why a simple LED flashlight has about as much in common to an advanced aquarium LED as paper glider to an airplane. This however is also the advantage as useless green and yellow light spectrums can be omitted as well.

LED aquarium lighting has now become a viable replacement for metal halide and T5 aquarium lighting as soft and hard corals are able to thrive under high output LED’s. These new reef compatible & freshwater plants tank LEDs are likely to take over the market along with the T2, T5, & SHO as they become more readily available, the price comes down and PAR, lumens per watt, & generally aquarium compatibility come up (correct emitter Kelvin technology has been a barrier in the past). In addition these lights do not have the heat problems, often last 50,000 hours, produce little useless yellow/green spectrum light (in aquarium adjusted configurations), and are very compact.
LED lights with proper Kelvin/Nanometer output emitters may prove to be more suitable for aquatic life tank-lighting and reef tanks because they offer superior flexibility when compared with traditional fluorescent lighting. When LED lights operate, the photometric radiation remains within a narrow band on the electromagnetic spectrum. Specific photometric wavelengths are often beneficial to some aquatic plant life and reef tanks. Controlling specific wavelengths becomes possible through a basic network of colored LED lights connected to a digital LED controller. The water resistant casing also provides the LED circuitry with adequate protection against moisture and chemicals found within the fish tank or reef tank.
Since LEDs emit light only in very specific direction, the installer has the option to illuminate a precise area by simply rotating the polycarbonate tube casing. For this reason the LED does not need to produce as many lumens of light as most conventional lights as many lumens of important light energy is lost due to lack of focus, including all power compacts and fluorescent lights in general, but need higher lumen outputs to achieve the same lighting parameters (one test shows at least a 166% difference of lumens at 20 inches in favor of the Aqua Ray for the same given wattage as compared to a compact Fluorescent).

LED Light Comparisons/Tests

In tests for plant nurseries (Green House, Hydroponics) full spectrum LEDs such as the TMC Natural Daylight Aquarium Lights or the LED Grow Lights have been proven to surpass even Metal Halide Lights in both growth and useful output.
To the left is the plant growth results comparing the same LED and Metal Halide Lights (please click to enlarge view):

This controlled test has aquatic implications, as photosynthesis is the same whether it be a terrestrial plant, a freshwater aquatic plant, or symbiotic zooanthellic algae found in corals. The only difference would be that light energy is quickly absorbed by water, especially red light waves and many MH (such as a 14,000K or 20,000) have excellent depth penetration, however modern LED lights such as an AquaRay/AquaBeam 500 Marine Blue have similar penetration.
It is still easy to make assumptions from the raw data based on this study with plants that a 12 Watt LED can at least replace a 100 watt MH of equal Kelvin ratings in aquarium applications (the TMC AquaBeam 1000; 30 Watt LED should easily replace one 175 Watt Metal Halide of similar rating (14,000K for example) for marine applications.

It is worthwhile pointing out that one needs to compare “apples to apples”; and at this current time (as of any updates) you still cannot compare a 400 watt Metal Halide actinic to any LED, including the TMC AquaBeam 500 Reef Blue (all blue 50,000 emitters) for both output or depth penetration. However many modern LEDs can compare favorably with many common Metal Halides, especially for tanks under 24 inches.

The picture to the left shows the useful PAR light energy of a MH compared to a LED Light (both full spectrum daylight).Legend
*Dark Blue = LED Lights
*Light Blue = Necessary PAR Spectrum of Chlorophyll
*Lavender = Metal Halide.
More about emitters:
Many do not seem to understand that not all emitters equal, even with the Cree-XR-E emitters sold commonly for other applications (these are an excellent emitter in terms of lumen per watt output) are only as good as their correct wavelength output (Kelvin Temperature/Nanometers). I have used and test many “cheap” emitters or even otherwise good emitters that do not produce the important light energy needed to support aquarium life.
As well these new technology LED emitters can be selected for the exact wavelength of light, thus almost no useless yellow or green light is emitted, so although the LED may seem less bright than some HO lights with the naked eye (such as T5s or MH) the actual output of light energy in spectrums we cannot see is much higher, this is why gauging a light by what you see is highly inaccurate.
For instance, Cree Emitters used by Tropic Marine Center AquaRay/AquaBeam should not be confused with Cree emitters sold for other lighting applications, as these do not produce the correct Kelvin/Nanometers of Light required for delicate marine reef and freshwater inhabitants and plants.
Think about why a CFL 10,000K daylight is so much different and more expensive than a common household CFL sold in hardware stores, or the many decorative LED aquarium lights or even those for home or flashlight use; try using one of these to grow your delicate coral or plants (the answer is they will not).


Article from: Aquarium Lighting; Facts & Information


LED Lighting Bulb

09 Apr

Warm white LED Light Bulb for use in all incandescent screw-in base fixtures.

We are happy to bring to you our second generation of white LED light. These are professionally engineered light bulbs (often called LED Lights or LED Lamps in the trade) that fit into screw base incandescent lamp sockets. Our H32 model produces a warm white color light and emits enough light to replace incandescent and CFL’s for many spot lighting tasks where directional lighting is needed.

There has been plenty in the news about green gadgets and environmentally friendly LED lights recently. You probably already know the potential energy and environmental savings that can be achieved by switching to LED’s. If not, then let us give you a simple rundown of the primary benefits:
Energy savings (save 90% versus incandescent)
Incredible lamp life (50,000+ hours)
Environmentally friendly (no mercury or harmful gases)

The design and manufacture of these LED lights is beyond compare – from the all metal die cast cooling fins to the IC boards that drive the diodes, every part has been manufactured to exceed world performance standards. You simply cannot find a better built 9 watt LED spotlight lamp than the H32!

Great for retrofitting into existing track lights, downlights, or other lighting fixtures with a spot type lighting distribution, these white LED light bulbs deliver smooth and uniform light without any flicker. The warm white color of this LED lighting bulb is as “natural looking” as incandescent, but will save you $100’s every year on your energy bill!

Chinavasion offers this LED Light Bulb with an astounding no M.O.Q. (no minimum order quantity) so you can try one for yourself to see how it works. Then you can stock up on larger quantities of this new LED lamp to sell at your online / physical store or feature it in your latest eBay, Amazon or uBid listings. In stock in our warehouse right now, order today and we will ship them out to you tomorrow – guaranteed!

At a Glance…

White color LED Light
For use in any standard incandescent base light socket
Long life as compared to incandescent and CFL bulbs
Uses only 9 watts of energy
Energy savings choice for replacing 75-100 watt incandescent lamps
Ref code: ZexJP3IAYIsq15c


LED Lighting: 10 Reasons to Buy (and NOT to Buy) LED Lights

01 Apr

There are lots of myths and facts about using LED as functional lighting. Pls give opinion. As a buyer what points / parameters I should consider while sourcing LED lights.

This is definitely an interesting issue because as many people interested in green building design and sustainability know, LED (Light-Emitting Diode) lights can provide a long lasting and energy efficient lighting solution. LEDs are commonly involved in building lighting components such as decorative lighting (both interior and exterior) as well as electronic equipment and exit signs.

LEDs are, by definition, a semiconductor diode that emits light when a voltage is applied to it and that is used especially in electronic devices. Historically LEDs have been employed over and over again as indicator lights in electronics. As a matter of fact, as I write this, I’m sitting in close proximity to no less than 10 LEDs. But, if I were at work, in the presence of my Z-Bar LED task lamp, that number would be more like 75. Using that example, for desktop lighting you can see the savings associated with using a combined input of 9W compared to a typical 30W (or more) bulb.

The use of LEDs as functional lighting (i.e. not purely aesthetic) is somewhat of a new and still emerging area. But with some motivation, such as the European Union phasing out incandescent totally by 2012, technologies like high-brightness light-emitting diodes (HB-LEDs) are becoming more prevalent. And even here in the states, the ARRA has in many states, provided funding for properties to investigate and install HB-LEDs as functional lighting. One companies at the forefront of LED design that you might want to look into more are Fobsun Electronics Inc.

Advantages include:

•The US Department of Energy expects the cost of producing LEDs to decline below that of compact fluorescent lamps (CFLs) in about 2013.
•High level of energy efficiency.
•More durable.
•Extended product lifetime.
•Reduced heat load to the space (an added benefit from reduced energy usage).
Disadvantages include:

•”Warm” lighting generated by LEDs is more expensive than “cold” lighting.
•LEDs are more expensive than more some more traditional lighting concepts.
•Limited selections and options.
•Color quality.
•Lack of product standardization.
My recommendation while sourcing LED lightings would be to first find several reputable manufacturers’ representatives in your area. This person/company would be able to answer all of your specific questions as well as help perform cost/benefit calculations to determine the best course of action for your project.

Ultimately first, you have to ask yourself what your goals are for pursuing LED lighting and based on the known advantages and disadvantages, which aspects do you have to have or are willing to sacrifice to meet your needs. Good luck!


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New York City To Get LED Street Lighting

01 Apr

New York City’s Department of Transportation has tapped the Office for Visual Interaction for testing LED street lighting around the Big Apple. If successful, all of the city’s 300,000 street lamps could one day be made up of LEDs.

Of course, LEDs are just plain awesome! Their power consumption is much lower than that of standard bulbs. Heck, even lower than that of CFLs.
But the OVI contract doesn’t only replace the current high-pressure sodium lighting, but also introduces a whole new lamp pole as well. While I am a fan of LEDs, I am quite fond of the Gotham-styled lamp poles. Keep your paws off, OVI!

Okay, maybe the new poles aren’t so bad. The poles will be between four to six feet, and have up to 100 LEDs each. They will have four light sources per pole, and can create different light patterns. The light footprints can be tailored for parks, street corners or mid-block.

The city will begin testing with a mere six poles, and the testing period will end by fall of 2009. But even if the city approves the highly-efficient lamps, it’s likely they won’t roll out 300-thousand new lamp poles all at once.

Written by Jerry James Stone
Original:New York City To Get LED Street Lighting

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